Fred Miranda wrote:
The site is not affiliated with Fotodiox but if I were to get a EOS-M third party adapter, I would get theirs for $70.
It retains AF and IS.
I own a very high quality filter system from them.

From the photos the Canon, the Photodioxpro, and the Rainbow Imaging version of this adapter all look the same except the text. My white box Canon one was $70. I would think they all came off the same assembly line.

Just got the M adapter from B&H that was backordered and can report that it cost me $149 but works perfectly. Auto focuses perfect with a 24-105 that i mounted on it. I also unscrewed the tripod mount adapter from the bottom since i don't see putting this on a tripod. However since it has a built in thumbscrew, you can install it and remove it in minutes. I might also add that the 24-105 mounted on the camera body may look a little weird, but it actually aids in the handeling of the body since it adds a little weight and stability. Was also able to zoom a little bit better than with the 18-55 since i have big hands. Doubt if the wife will like it though since it does add weight to the setup.

Received the Rainbow Imaging version today, seems to be of solid construction fits a lens about the same as my Tamron 1.4 converter. Unfortunately my camera won't arrive until tomorrow. Will test after I play with the ket lens awhile

I paid $99 for one today ... the recent EOS M sales have been driving up the prices in recent days. $85 > $89 > $99 ... so decided not to wait any longer. As far as I know the lowest price was $70 before the sale picked up speed ... so current prices are only $29 higher. Not really a big deal.